Enquire MCP vs Agentcairn

In-depth architectural comparison of the Enquire MCP and Agentcairn MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose Enquire MCP when:

• You need dedicated capabilities in the Knowledge & Memory domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: Hybrid retrieval: BM25, ML embeddings, BGE reranker with RRF fusion, Supports Markdown, PDFs with Tesseract OCR, Canvas, Dataview, and Bases, Returns source paths, page citations, age_days, and stale flags.

Explore Enquire MCP Details

Choose Agentcairn when:

• You need dedicated capabilities in the Knowledge & Memory domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: Plain Markdown Obsidian vault as canonical memory store, Rebuildable DuckDB index for hybrid BM25, vector, and graph recall, Non-lossy memory capture with supersession and secret redaction.

Feature & Specification Comparison

Specification	Enquire MCP oomkapwn Knowledge & Memory	Agentcairn ccf Knowledge & Memory
Summary	Long-term memory for AI agents (Claude Code/Desktop, Cursor, ChatGPT, Codex, OpenClaw) backed by a local Obsidian markdown vault. Hybrid retrieval (BM25 + ML embeddings + BGE reranker, RRF-fused), HNSW + int8 quantization, agentic RAG (HyDE + sub-question), GraphRAG-light (Louvain wikilink community detection), standalone Obsidian Bases, PDFs + Tesseract OCR. 46 tools, 19 MCP prompts, MIT, SLSA L2, zero cloud calls during serve. npx -y @oomkapwn/enquire-mcp serve --vault	Local-first agent memory: a plain-Markdown Obsidian vault is the source of truth, with a rebuildable DuckDB index for hybrid BM25 + vector + graph recall. Non-lossy capture with secret redaction; works across Claude Code, Codex, Cursor, and any MCP host. uvx agentcairn

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "oomkapwn-enquire-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@oomkapwn/enquire-mcp"
      ]
    }
  }
}

{
  "mcpServers": {
    "ccf-agentcairn": {
      "command": "uvx",
      "args": [
        "--version"
      ]
    }
  }
}

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